Proceedings of the Zoological Institute RAS Vol. 315, No. 2, 2011, рр. 181–192 УДК 567.5 NEW MATERIAL AND PHYLOGENETIC POSITION OF AIDACHAR PALUDALIS NESOV, 1981 (ACTINOPTERYGII, ICHTHYODECTIFORMES) FROM THE LATE CRETACEOUS OF UZBEKISTAN T.G. Mkhitaryan1 and A.O. Averianov2* 1Department of Vertebrate Zoology, Faculty of Biology and Soil Sciences, Saint Petersburg State University, Universitetskaya Emb. 7/9, 199034 Saint Petersburg, Russia; e-mail:
[email protected] 2Zoological Institute of the Russian Academy of Sciences, Universitetskaya Emb. 1, 199034 Saint Petersburg, Russia; e-mail:
[email protected] ABSTRACT Aidachar paludalis Nesov, 1981 from the Upper Cretaceous (Turonian) Bissekty Formation of Uzbekistan is referable to the teleost order Ichthyodectiformes by combination of the following diagnostic characters: large and massive intercalar, forming part of the hyomandibular facet and a canal for the jugular vein; deep premaxilla- maxilla attachment; deep dentary symphysis; angled coronoid process of the dentary; teeth forming a single series in the jaws. It shares a unique character with Aidachar pankowskii (Forey et Cavin, 2007), comb. nov., from the Cenomanian of Morocco: hyomandibular facet clearly divided into two parts. Key words: Aidachar, Ichthyodectiformes, Late Cretaceous, Uzbekistan НОВЫЙ МАТЕРИАЛ И ФИЛОГЕНЕТИЧЕСКОЕ ПОЛОЖЕНИЕ AIDACHAR PALUDALIS NESOV, 1981 (ACTINOPTERYGII, ICHTHYODECTIFORMES) ИЗ ПОЗДНЕГО МЕЛА УЗБЕКИСТАНА T.Г. Мхитарян1 и A.O. Аверьянов2* 1Кафедра зоологии позвоночных, Биолого-почвенный факультет,